The 29-year-old victim was on board a Queens-bound train when a suspect punched him in the face out of nowhere as the train pulled into the 46th Street-Bliss Street station in Queens, police said.
The suspect ran off when the train doors opened.
The victim was treated for a cut and swelling to his lip.
Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477).
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